首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owne
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owne
admin
2011-04-26
111
问题
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelligence; but at this age the likelihood of death is least. 71.
Earlier, we were infants and young children, and consequently more vulnerable; later, we shall undergo a progressive loss of our vigor and resistance which, though imperceptible at first, will finally become so steep that we can live no longer, however well we look after ourselves, and however well society, and our doctors, look after us.
This decline in vigor with the passing of time is called aging. It is one the most unpleasant discoveries which we make that we must decline in this way, that if we escape wars, accidents and diseases we shall eventually "die of old age", and that this happens at a rate which differs little from person to person, so that there are heavy odds in favor of our dying between the ages of sixty-five and eighty. Some of us will die sooner, a few will live longer on into a ninth or tenth decade. But the chances are against it, and there is a virtual limit on how long we can hope to remain alive, however lucky and robust we are.
Normal people tend to forget this process unless and until they are reminded of it. 72.
We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigor with time, of becoming more likely to die the older we get was something self-evident, like the cooling of a kettle of hot water or the wearing-out of a pair of shoes.
They are also assumed that all animals, and probably other organisms such as trees, or even the universe itself, must in the nature of things "wear out". Most animals we commonly observe do in fact age as we do if given the chances to live long enough; and mechanical systems like a wound watch, or the sun, do in fact run out of energy in accordance with the second law of thermodynamics. But these are not analogous to what happens when man ages. A run-down watch is still a watch and can be rewound. An old watch, by contrast, becomes so worn and unreliable that it eventually is not worth mending. But a watch could never repair itself—it does not consist of living parts, only of metal, which wears away by friction. 73.
We could, at one time, repair ourselves—well enough, at least, to overcome all but the most instantly fatal illnesses and accidents. Between twelve and eighty years we gradually lose the power; an illness which at twelve would knock us over, at eighty years can knock us out, and into our grave. If we could stay as vigorous as we are at twelve, it would take about 700 years for half of us to die, and another 700 for the survivors to be reduced by half again.
选项
答案
在一段时间内,我们可以自我修复,至少可以战胜除了致命的疾病和事故以外的其他所有事故和疾病。从12岁到80岁,我们逐渐丧失这种能力。12岁时的一场疾病也许可以让我们卧床,80岁时同样的疾病却可以使我们毙命。如果我们能够保持12岁时旺盛的生命力,那得过700年我们中的一半人才会死去,再过700年,幸存者才会又减少一半。
解析
转载请注明原文地址:https://kaotiyun.com/show/rB6O777K
0
考博英语
相关试题推荐
Readthenewspaperarticlebelowaboutapartnershipbetweenindustryandschools.Aresentences16-22belowthearticle"Right"
Readthearticlebelowaboutaservicewhichhelpscompaniesindifficulties.Foreachquestion(23-28)ontheoppositepage,cho
A、The11ammeetingispostponedbecausePeter’strainwascancelled.B、Peterwillarriveatthe11ammeetinglatebecausehis
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Manypuremetalshavelittleusebecausetheyaretoosoft,rusttooeasily,orhavesomeother______.
Althoughdiverse,Africanmusichascertaindistinctivetraits,oneofwhichistheuseofrepetitionasanorganizingprinciple
Mostofthewaitersare______intheirworkbecausetheowneroftherestaurantdoesnotpaythemontime.
Noonegetsoutofthisworldalive,andfewpeoplecomethroughlifewithoutatleastoneseriousillness.【B1】Ifwearegiven
Inthedesertedfactoryseveralhugemachineswerelefttorustanddecay.
Greatworksareperformednotbystrengthbutbypersistence.
随机试题
以调节气机升降为主要作用的脏腑是
维果茨基提出的关于教育和教学的重要问题不包括()。
甄选成员面谈时提出的主要问题不包括()。
小学生注意的特点有哪些?
2014年,全社会用电量55233亿千瓦时。分产业看,第一产业用电量994.亿千瓦时,同比下降0.2%;第二产业用电量40650亿千瓦时,同比增长3.7%;第三产业用电量6660亿千瓦时,同比增长6.4%;城乡居民生活用电量6928亿千瓦时,同比增长2.2
智力技能的特点是______。
外汇汇率的直接标价是指以一定单位的外国货币为标准来计算应付出多少单位本国货币。()
廉租房
国外某教授最近指出,长着一张娃娃脸的人意味着他将享有更长的寿命,因为人们的生活状况很容易反映在脸上。从1990年春季开始,该教授领导的研究小组对1826对70岁以上的双胞胎进行了体能和认知测试,并拍下了他们的面部照片。在不知道他们确切年龄的情况下,三名研究
Anewanalysisoffederalmoneythatpublicschoolsreceiveforlow-incomestudentsshowsthatarecordnumberofthenation’ss
最新回复
(
0
)